set autoscale
unset log
unset label
set xtic auto
set ytic auto
set terminal png
set output 'working_dir/PREFIX_size_lambda.png'
plot 'working_dir/PREFIX_size_analysis.dat' using 1:2 title 'lambda*' with linespoints
set output 'working_dir/PREFIX_size_rmse.png'
plot 'working_dir/PREFIX_size_analysis.dat' using 1:3 title 'Train RMSE*' with linespoints, \
       'working_dir/PREFIX_size_analysis.dat' using 1:4 title 'Test RMSE*' with linespoints
